head of the e.p.a. >> it's not just obama. the failure of cap and trade was through the congress, not just republicans but democrats in congress. they had ties to coal, nuclear et cetera. i feel like the debate is moving, but it's like the gun control debate, but further behind. we have horrible shootings, we say we have to do something after gabby giffords then aurora. then after sandy hook, it got put on the agenda. climate change is moving that way, too. we keep saying after the explosions in louisiana we have to do something. we have to do something then, you know, hurricane sandy happens and it looks like finally we have reached that moment where we are going to do something. i don't know. i think it might take one more horrible environmental tragedy for it to get put on the agenda. >> we have done -- the fact the e.p.a. exists and it was created under richard nixon. as i was reading about it thinking about today, when he established the e.p.a., nixon said he wanted the 1970s to be a historic period when by conscious choi